Owner’s Manual
Pre One/A
Stereo Preamplifier
* If you are younger than 13,ask your parents for permission to send
Congratulations on your purchase. Please take a few moments to read this manual, and retain it for reference. The Pre One/A is the control center for your audiovideo system. It features versatile switching and dubbing capabilities, with six inputs for line level components. Two sets of master line outputs allow for either a direct subwoofer connection or multiple amplifiers. Two AC power inputs permit direct connection of system components. The Pre One/A carries a full, two year, transferrable warranty.
Front Panel Controls
Power
This front panel button switches the unit on or off. A multicolored LED indicates its power status.
Input Selector Buttons (Tape, Tuner, Aux, CD, DVD, LD)
Press any of these buttons to select the input source. The red LED indicates your selection. These buttons correspond to the wiring on the back panel, so the CD button, for example, selects the unit plugged into the CD input. The tape button activates a tape loop, allowing you to use a signal processor (graphic equalizer, sur round sound processor, etc.). The tape button can be on while another but- ton is also selected, allowing you to equalize or process CD’s, video- tapes, radio broadcasts, or other signals.
Bass & Treble Controls
Turn these controls clockwise to increase the amount of bass (low fre- quencies) or treble (high frequencies). The 12:00 position indicates a flat response, equal levels of bass, treble and midrange.
Balance Control
Turn this knob counterclockwise to increase the volume of the left channel, clockwise to increase the volume of the right channel. The 12:00 position indicates equal output to each channel.
Volume Control
Turn this control clockwise to increase the overall system volume. Be careful not to set the volume so high as to cause distortion, as this could damage the speakers and amplifier.
Hooking up the Wires
All components plug into the RCA jacks on the rear panel of the Pre One/A. This is the recommended wiring.
Outboard Processor Configuration
When using an outboard processor, such as a graphic equalizer, fol- low this simple chain.
LD LD stands for LaserDisc. Plug the line out (audio) jacks from a LaserDisc or other video component into these jacks. DVD Plug the line out (audio) jacks from a DVD or other video component into these jacks.
CD Plug the line out jacks from a CD into these jacks.
Aux Plug the line out jacks from any line level component into these jacks.
Tuner Plug the line out jacks from a tuner/radio into these jacks. Tape In Plug the tape out (play) jacks from a cassette deck into these jacks.
Tape Out Plug the tape in (rec) jacks from a cassette deck into these jacks.
Line Out 1 Plug these jacks into the line in jacks of a stereo power amplifier.
Line Out 2 These jacks are a convenience. You may connect them to, perhaps, a powered subwoofer or another amplifier.
